Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Patent
1998-03-11
2000-02-22
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
1374936, 1374931, 22020324, F16K 1726
Patent
active
060268484
ABSTRACT:
A pressure relief valve assembly has a tubular body (10) with an internally projecting first valve seat (34, 80). An annular seal carrier (22) supports a resilient seal (24) which is spring-biased into engagement with the first valve seat (34). A movable valve member (44) has a second valve seat (46) which is spring-biased into engagement with the resilient seal (24), the range of movement of the movable valve member (44) towards the resilient seal (24) being limited by an abutment formation (52) which engages with a complementary formation (54) on the body (10). The resilient seal (24) comprises a body portion (26) abutting the seal carrier (22), a first lip portion (32) capable of flexing movement relative to the body portion (26) and adapted to engage with the first valve seat (34) and a second lip portion (48) capable of flexing movement relative to the body portion (26) and adapted to engage with the second valve seat (46).
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Ferensic Denise L.
Kim Joanne Y.
Stant Manufacturing Inc.
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